yates



May 12,1942. c. YATES Filed Feb. 28, 1939 5EFARABLE TRANEFARENT ADHESIVE SHEET UFA IJUE INTERLEAV/NE SHEET INVENTOR. LHARLES YATES ATTORNEY BOOK Charles Yates, Perth Amboy, N. J., assignor to- Raritan Bay. Holding Company, Perth Amboy,

N. 1., a partnership Application February 28, 1939, Serial No. 258,901

3 Claims.

It is well known that it is a usual practice for sales concerns to exhibit to their trade display specimens of advertising matter, commercial samples, photographs or illustrations oi stock being offered to the trade, the various items of which are pasted, or otherwise secured, to the leaves of a display book for rendering the display items accessible and convenient for exhibition. Such books resemble in their general assembly, so-called scraprbooks, wherein the items to be preserved usually are pasted upon the leaves of the book, which are composed of rather stiff, opaque, unglazed paper, perforated at suitable intervals along one side and removably secured in suitable binders by suitable releasable securing means, which bind together the whole assembly as a loose-leaf book.

It is apparent, of course, that the use of such books is attended with certain inconveniences and objections.

Thus, each item must be affixed by the application of paste either to the item or to the page at the position which the item is to occupy when afiixed. Any excessive paste must be removed and the pasted area allowed to Become substan-,

tially dry before the book is closed, or the page turned. Additionally, the items when afilxed are unprotected to a large extent, and so are subject to damage by tearing. soiling, or otherwise; and the adhesive paste becomes dry in a short time and loses its adhesiveness, whereupon the items become detached from the page'of the book to which they have been afiixed.

The present invention provides improvements in books of the above-indicated character, by providing such a book wherein the leaves comprise film-like sheets of transparent material, such as cellulose esters or other transparent cellulose material or the transparent rubber derivative known to the trade as pliofilm, produced'by the Goodyear Tire and Rubber Company, of Akron, Ohio. Cellulose acetate or cellulose butyrate is the preferred material for the sheets, although the invention does not exclude transparent paper, however. One side of such sheets is coated with a transparent, pressure-sensitive adhesive, which preferably is bonded integrally with the transparent cellulosic sheet, and this adhesive coating is overlaid with a relative lightly adhering opaque sheet as a backing, which is readily separable from the adhesive coating, thereby enabling the items to be exhibited to be applied directly to the pressure-sensitive adhesive coating to be viewed through the transparent film, protected thereby while being fully visible, and being protected reversely by the opaque backing sheet which conveniently in practice is relatively thick glassine paper, the surface of which has been treated with an oil which is incompatible with the adhesive coating to reduce adhesion thereto, and promoting ready separation of the backing sheet therefrom.

The transparent adhesive coating is applied to the transparent film-sheet preferably so that there will be an integral bond between the sheet and the adhesive coating. This is accomplished by applying the adhesive to the sheet in the presence of a solvent which is compatible with both the adhesive and the sheet, to soften the latter and produce an-integral .commingling of the sheet and adhesive. Such an integral bond prevents any tendency of the sheet to separate from the adhesive coating; and both the adhesive and the sheet remain permanently transparent and free from discoloration or distortion through either drying out or through absorption of moisture.

The foregoing discussion indicates some of the objects of the present invention; and further objects and advantages of the invention will become apparent as the description proceeds, and the features of novelty will be pointed out in particularity in the appended claims.

The accompanying drawing illustrates one manner in which the present improved product may be produced and the structure of the improved product, it being understood, of course, that many variations in the practicing of the present invention may be made without in any way departing from the scope of the invention.

In the accompanying drawing Fig. 1 is a perspective view of a loose-leaf book comprising the present improved page construction.

Fig. 2 is a perspective view of the book in open position, parts of one of the pages being shown partially separated for illustrating details of as-' sembly of the pages.

Fig. 3 is a perspective view'of a laminated sheet which is used as one of the improved book'pages, as embodied in the present invention. 7

In the drawing. a film-like base sheet 58 is shown, made of suitable material, having a transparent pressure-sensitive adhesive coating 6! bonded to one face thereof. A relatively thick backing sheet 63 preferably coated with an oil incompatible with the adhesive coating 6| is affixed to the base sheet 58 in the manufacture of the article by any suitable means, as by pressing the base sheet andbacking sheet together between pressure rollers, thus causing a superficial adherence-between the separator or backing sheet 63 and the adhesive coating 6| of the base sheet. A portion 81 of the base sheet 58 adjacent its end or margin may be left uncoated to afford a convenient means to facilitate removal of the backing or separator sheet 63. The base sheet 58 is preferably of transparent material such as 2,283,026 um'rso STATES PATENT OFFICE opaque but may be translucent or transparent if desired.

Removal may be further. facilitated by making the separator sheet 3 wider (see Fig. 3) than the adhesive sheet, so as to form a continuous area for facilitating the requisite purchase on the sheets to eifect the separation. However, if desired,-both the adhesive sheet and interleaving sheet may be the same in width.

The resulting laminated sheet is cut to size to fit suitable loose-leaf binders, such as shown in Fig. 1, which comprise front and back covers 53 and 55 enclosing pages 51, the whole being secured together by suitable releasable binding means, such as cords ID.

The pages 51 each comprise the transparent film-base sheet 58, which is coated on one side by a suitable transparent pressure-sensitive adhesive 6|, which preferably has been bonded to the sheet 58 in a manner such as has been described above. This adhesive has a composition which will remain permanently colorless and transparent, and theintegral bond between the adhesive coating 6| and the, sheet 58 prevents eflectively any separation therebetween. This coating 6| is overlaid by the lightly adherent interleaving sheet 63, which is substantially opaque, but which may be of glassine paper,

which is readily separable from the adhesive coating 6i, so that exhibits 65, 65 may be applied easily-to the adhesive SI and secured thereto in selected position for viewing through the sheet 58, which consequently protects the face of the exhibit; and the reverse side thereof is protected by the interleaving sheet 63,---which when the book is closed, is brought again into lightly adhesive contact with the uncovered portions of the adhesive coating 6|, and forms, thereby, a covering for the: reverse sides of the exhibits.

In order to facilitate the separation of the transparent and interleaving sheets of a page of the book, a narrow margin 61 around the edge of the coated side of the sheet 58 is left free from adhesive coating, thereby facilitating the separation of the interleaving sheet 63 from the transparent sheet SI by aifording non-adherent areas which may be gripped conveniently for pulling apart the sheets 50 and 63.

The pages of the book may be assembled so that a transparent sheet and an interleaving sheet will follow one another in regular sequence, or the pages may be bound together in pairs, so to speak, as is shown in Fig. 2, so that the adhesive coatings of each pair of pages will be between the sheets of each pair, with an interleaving sheet interposed therebetween to prevent adhesion of the transparent sheets to each to change the display items from time to time without disturbing the pages of the book. To accomplish this, it may be desirable to have at least certain of the pages prepared to enable such changes and substitutions to be made. This may be accomplished by adjusting the adhesive properties of the adhesive coating 6| so as to render rearrangement or replacement of selected items without appreciable impairment of the tackiness or adhesive qualities of the coata ing, which may be effected by a suitable control other. In addition to preventing the pages sticking together, the interleaving sheets 63 form an opaque backing for each transparent page, so that only the exhibits on one-page will be displayed at one time, the exhibits on the fouowing pages being invisible through the interleaving sheets.

All of the sheets are perforatedas is indicated at N for receiving the binding cords 58 for binding together the pages of the book.

The composition 01- the adhesive coating 6| may vary quite widely. I

In making up display books of the character herein indicated, it may be found to be desirable of the tackiness of the adhesive composition.

What is claimed is:

1. A sheet for the display of articles in an album comprising a flexible, film-like sheet of material provided with a transparent pressure sensitive adhesive coating integrally bonded to one side thereof, said pressure sensitive coating enabling articles which are to be displayed to be adherently afiixed to and bonded with said coating, said sheet; being transparent so that articles so affixed will be visible through and protected by said sheet, and a relatively thick backing sheet secured to and lightly adhering to the adhesive coating of said sheet and the articles afilxed thereto, said backing sheet having its surface facing the first mentioned sheet provided with a coating incompatible with the adhesive coating to enable ready and repeated separation of said sheets from time to time for the aflixing of additional articles to be displayed to the flexible sheet, the said backing sheet being'opaque to strikingly set off the articles being displayed through the transparent sheet.

2. A sheet for the display of articles in an album comprising a flexible, film-like sheet of material provided with a transparent pressure sensitive adhesive coating on one side thereof, said pressure sensitive coating enabling articles which are to be displayed to be adherently aflixed to and bonded with said coating, said sheet being transparent so that articles so afllxed will be visible through and protected by said sheet, and a backing sheet secured to and lightly adhering to the adhesive coating of said sheet and the articles aflixed thereto, said backing sheet being incompatible withthe adhesive coating to enable ready and repeated separation of said sheets from time to time for the aflixing of additional articles to be displayed to the flexible sheet.

3. A sheet for the display of articles in an album, comprising a flexible, film-lie sheet of material provided with a transparent pressure sensitive adhesive coating on one side thereof, said pressure sensitive coating enabling articles which are to be displayed to be adherently affixed to and bonded with said coating, said pressure sensitive coating terminating short of a margin of the film-like sheet, said sheet being transparent so that articles so afllxed will be visible through and protected by said sheet, and a backing sheet secured to and lightly adhering to the adhesive coating of said sheet and the articles aflixed thereto, said backing sheet being incompatible with the adhesive coating to enable ready and repeated separation of said sheets from time to time for the aiiixing of additional articles to be displayed to the flexible sheet and being nonadherent to the uncoated margin of the film-like sheet to facilitate separation of the sheets for CHARLES YATES. 

